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by w0z_ 731 days ago
China's satellites (Jilin-1, etc.) can essentially track things across the world in seconds versus minutes (i.e. it can follow a plane, or car on the street in real-time). So I'm guessing "radio silence" does not affect much locational opsec at this point.
2 comments

I would imagine that the location of carrier groups is basically known at all times to serious adversaries, regardless of emissions. They're not exactly small and if you're doing it right they don't dive underwater.
It’s pretty crazy the technology that’s out there that we’ll never see / experience without working some high-level gov job.
You’ll be promptly disillusioned if you do

Governments aren’t ahead of the private sector and arent doing parallel innovation with their massive budgets, just knowing industry trends gets you an understanding of what to expect

They're ahead in very specific ways, mostly where there's no commercial activity that would justify the expense of investing in that area. e.g. extremely high resolution imaging satellites.
They do pay for edge connections of technology that will never exist in the civilian space though.